# duck_typing.py

# duck_typing.py

# If it walks like a duck, and it quacks like a duck, then it must be a duck.

class Duck():

    def walk(self):
        print("Look like a duck is walking")

    def talk(self):
        print("This duck is quacking")

class Chicken():

    def walk(self):
        print("Look like a chicken is walking")

    def talk(self):
        print("This chicken is clucking")

class Person():

    def catch(self, subject):
        subject.walk()
        subject.talk()
        print("You caught the little critter!")


duck = Duck()
chicken = Chicken()
person = Person()

person.catch(chicken)
print
person.catch(duck)